Once upon a time there was only one firm on the lips of any business' IT team when it came to company phones – BlackBerry (formerly known as Research In Motion or RIM).

BlackBerry is still a big player in the enterprise market but the rest of the pack is hot on its heels, with the likes of Apple, Samsung, Nokia and HTC all eager to get a piece of the business pie.

In no particular order, here are the top 10 smartphones for business use and business users:

BlackBerry Z30

We're kicking off our top 10 with the latest handset from the firm once synonymous with business handsets – the BlackBerry Z30.

BlackBerry has always been a firm favourite in the business arena, but recently people have begun switching en masse to Apple and Android offerings.

The Z30 builds on the BlackBerry Z10 which was used to launch the firm's BlackBerry 10 operating system, aimed at winning back the business market with an excellent messaging hub.

BlackBerry Z30

Offering up a larger, 5-inch fully touch display the Z30 is a more convenient size (compared to the Z10) for many, allowing you to get more information on screen at once. The big advantage with the BlackBerry Z30 is its excellent support for business users.

IT departments can take control of the handset using BlackBerry Enterprise Service 10 (BES 10), with security provided by BlackBerry itself ensuring all your emails and messages are fully encrypted.

The Z30 has a feature known as BlackBerry Balance which allows you to flip quickly between work and personal profiles on the handsets, allowing you to keep the two separate with work controlling the business side while you have full control over your own area.

iPhone 5S

More and more businesses are turning to Apple's smartphone offerings, and while it produces great looking, powerful devices, they certainly come at a price.

The iPhone 5S is the latest in Apple's line up, and while it only builds fractionally on the iPhone 5, it continues to turn heads in every circle.

Apple offers a wide range of enterprise resources on the iPhone 5S with support for SSL VPN and data protection APIs, enabling third party app makers to produce fully secure solutions.

There's even a fingerprint scanner hidden beneath the home key on the iPhone 5S, adding another layer of security to the handset.

iPhone 5S

On the topic of apps, the iPhone family is best placed when it comes to business focussed software, with thousands of applications available on the App Store aimed at making work easier - not to mention Apple's own suite of business software which is now available for free.

You also get Siri, your own personal digital assistant who listens to your voice and brings you whatever you need, from meeting reminders to the latest footy scores.

The iPhone 5S runs Apple's latest software, iOS 7, which features a fresh new look allowing it to keep pace with the rapidly evolving Android platform.

If your company has already upgraded to the iPhone 5, there really is now need to make the switch to the 5S, you're better off waiting for the iPhone 6 at least.

HTC One

If you're looking for all round smartphone perfection look no further than the HTC One. It's only the third ever smartphone to pick up a coveted 5 star TechRadar rating, and it fuses superb design with excellent functionality.

It's not a business minded as the BlackBerry Z30, but the One's full metal body puts it up there with the iPhone 5S in terms of premium style and boardroom presence.

The full HD, 4.7-inch display is the most defined in this list and the punchy quad-core processor and 2GB of RAM ensures you'll never be short of power.

HTC One

There are plentiful amounts of bells and whistles on the HTC One and the Android Jelly Bean operating system allows for a wealth of customisation - although HTC has heavily skinned it with its Sense overlay.

You may find that overlay gets in the way of core business functions, so it's worth checking out the HTC One before hand, but if the interface is manageable you'll be more than happy getting this out in meetings.

Nokia Lumia 925

The Windows Phone 8 toting Nokia Lumia 925 turns up with Microsoft's backing, which will sound attractive to businesses that rely on the firm's Windows software for its computers.

Building on its predecessor, the Lumia 920, the Lumia 925 sports a premium metal chassis and slimmer design making it more manageable in hand and in your shirt pocket.

Unsurprisingly, Windows Phone 8 plays nicely with its computer-based brothers – although companies running Macs may want to opt for the iPhone instead.

Nokia Lumia 925

The unfussy Live Tile display on the home screen keeps things simple, allowing you to access your emails, messages or call log quickly, and the intuitive interface makes it an easy system to learn.

The Lumia 925 has one of the largest screens in the current Windows Phone 8 line up at 4.5 inches, which comes in handy when viewing documents and long email chains.

Microsoft's fully functioning Office Suite for mobiles - something which is currently only available on Windows Phone – is installed on the handset, making last minute amendments on the way to a meeting easy.

It may not have the same wealth of apps as Android or iOS, but if you can cope with that you'll enjoy the Nokia Lumia 925's powerful offering.

Samsung Galaxy Note 3

Working on your smartphone can be problematic due to the restrictive screen size, but manufacturers are looking to ease the issues with supersized handsets.

The Samsung Galaxy Note 3 arrives with a huge 5.7-inch, full HD display and its very own S-Pen stylus, merging the line between smartphone and tablet.

If your business is creatively minded then you may find the accuracy of the S-Pen and the ability to draw a real advantage.

You can also annotate documents, emails and anything else on screen using the stylus, allowing you to provide instant feedback to colleagues.

Samsung Galaxy Note 3

Multitasking has always been tricky on smartphones, partly due to the screen size and the fact that it's not really possible to have two apps on screen at once.

Samsung has overcome this problem on the Galaxy Note 3 by allowing you to run two apps side by side on the screen, so you could be looking at the latest financials while tapping out a quick email to the shareholders.

Of course, the size of the handset may hamper some as it isn't the most pocket friendly of devices, nor is it the lightest.

Also, some of the applications, especially those designed for use with the S-Pen, are overly complicated in places so intensive training may be required for some staff.